A bootstrap method for gain calibration and resolution determination of a lead-glass calorimeter

We describe a method for calibration of a lead-glass calorimeter that does not require a beam of known energy. The technique was used to calibrate the radphi lead-glass calorimeter at Jefferson Lab. The technique described can be applied to any segmented electromagnetic calorimeter capable of detecting all-photon decays of mesons, for example, π 0 → 2 γ , η → 2 γ or ω → π 0 γ . We also demonstrate how the measured 2 γ mass width of the π 0 and η mesons can be unfolded to extract the single-shower energy and position resolution functions of the calorimeter.

14.40.Cs
25.20.Lj
Meson
Photoproduction
Radiative
Decay
Phi
Radphi
Calorimeter
Calibration

References(6)

Figures(0)

[1]

of rare radiative decays of the φ meson. JLab Experiment E-94-106

A. Measurement

[2]

A Study of two prototype lead glass electromagnetic calorimeters

et al.

- Nucl.Instrum.Meth.A 332 (1993) 419-443
•
DOI:
- 10.1016/0168-9002(93)90299-W

[3]

GEANT Detector Description and Simulation Tool

et al.

DOI:
- 10.17181/CERN.MUHF.DMJ1

[4]

Data Analysis Techniques for High-Energy Physics

R. Fruhwirth

[5]

International Series of Monographs on Physics, vol. 107, Oxford University Press, Oxford

R. Wigman

[6]

Ph.D. Thesis, Indiana University

C.P. Steffen